Association patterns and kinship in female Indo-Pacific bottlenose dolphins (Tursiops aduncus) of southeastern Australia
Association patterns and kinship in female Indo-Pacific bottlenose dolphins (Tursiops aduncus) of southeastern Australia
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澳大利亚东南部雌性印度太平洋宽吻海豚（Tursiops aduncus）的关联模式和亲缘关系
DOI：
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发表时间：
2006
影响因子：
2.3
通讯作者：
R. Harcourt
中科院分区：
文献类型：
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作者：
L. Möller;L. Beheregaray;S. Allen;R. Harcourt
亲属关系已被证明是一个重要的相关群体成员和协会之间的许多女性哺乳动物。在这项研究中，我们调查的关联模式，在女性印度太平洋海豚（Tursiops aduncus）居住在澳大利亚东南部的海湾。我们结合联合收割机的行为数据与微卫星DNA和线粒体DNA数据来检验遗传相关性和母系亲属关系与协会和社会集群相关的假设。女性之间的平均关联与随机平均值没有显著差异，但标准差显著高于随机标准差，表明数据集中存在非随机关联。一个邻居加入树，根据女性之间的协会的距离，确定了该地区的四个主要的社会集群。频繁的女性联营公司对之间的平均遗传相关性显着高于对罕见的联营公司。线粒体DNA单倍型共享与女性关联程度之间也存在显著相关。然而，平均遗传相关性的女性对内和之间的社会集群和女性对的比例相同和不同的mtDNA单倍型内和集群之间没有显着差异。这项研究表明，亲属关系与协会之间的女性海豚，但亲属关系不一定是一个先决条件，社会集群的成员。我们假设，不同的力量作用于女性海豚的社会性，以促进灵活的群体，其中包括亲属和nonkin的形成。
Kinship has been shown to be an important correlate of group membership and associations among many female mammals. In this study, we investigate association patterns in female Indo-Pacific bottlenose dolphins (Tursiops aduncus) inhabiting an embayment in southeastern Australia. We combine the behavioral data with microsatellite DNA and mitochondrial DNA data to test the hypotheses that genetic relatedness and maternal kinship correlate with associations and social clusters. Mean association between females was not significantly different from a random mean, but the standard deviation was significantly higher than a random standard deviation, indicating the presence of nonrandom associates in the dataset. A neighbor-joining tree, based on the distance of associations between females, identified four main social clusters in the area. Mean genetic relatedness between pairs of frequent female associates was significantly higher than that between pairs of infrequent associates. There was also a significant correlation between mtDNA haplotype sharing and the degree of female association. However, the mean genetic relatedness of female pairs within and between social clusters and the proportion of female pairs with the same and different mtDNA haplotypes within and between clusters were not significantly different. This study demonstrates that kinship correlates with associations among female bottlenose dolphins, but that kinship relations are not necessarily a prerequisite for membership in social clusters. We hypothesize that different forces acting on female bottlenose dolphin sociality appear to promote the formation of flexible groups which include both kin and nonkin.